<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- <form action="">
        姓名<input type="text">
        <br>
        密码<input type="password">
        <br>
        性别<input type="radio" name="sex" checked="checked">男
            <input type="radio" name="sex">女
        <br>
        爱好
        <input type="checkbox">吃饭
        <input type="checkbox">睡觉
        <input type="checkbox">写代码
        <br>
        <input type="button" value="这是一个飞升" onclick="alert('加入光荣的进化把')"
    </form> -->
    <form action="https://www.huya.com/">
        <br>
        课程<input type="text" name="course">
        <input type="submit">
        <input type="reset">
        <input type="file">
    </form>
</body>
</html>